Daikin WMC Specifications Page 1

Catalog 602-4Magnitude®Magnetic Bearing Centrifugal ChillersModel WMC C Vintage 145 to 400 Tons (500 to 1400 kW) HFC-134a Refrigerant

Unit OptionsExport PackagingA wooden skid that aids in moving the unit and tight tting plastic covering the entire unit to protect it from dirt and g

RapidRestore®Allow chillers to restart and reach full load operation quickly in the event of a power loss event. See RapidRestore® on page 6 for more

Figure 7: Refrigeration System Diagram BUBBLE NO.LABELVALVE CONTROL1 PRESSURE TAP N/A2 RELIEF VALVE MANUAL3 RELIEF VALVE AUTOMATIC4 SERVICE

Location RequirementsDaikin WMC units are designed only for indoor, weather-protected, non-freezing areas consistent with the NEMA 1 rating on the chi

temperature entering on start-up must not exceed 90°F (32°C). Evaporator Leaving Water TemperatureWarmer leaving chilled water temperatures will raise

Condenser Pumps and PipingThe condenser water pump(s) must be cycled off when the last chiller of the system cycles off. This will keep cold condenser

applICaTIon ConsIderaTIonsCAT 602-4 • MAGNITUDE® MODEL WMC CHILLERS 16 www.DaikinApplied.comType B Knockdown, “Partial Disassembly”Compressor(s), pow

www.DaikinApplied.com 17 CAT 602-4 • MAGNITUDE® MODEL WMC CHILLERSengIneerIng guIde speCIfICaTIonsMAGNITUDE® MAGNETIC BEARING CENTRIFUGAL CHILLERSPAR

centrifugal chiller. Chillers shall have no more than two oil-free, magnetic bearing, semi-hermetic centrifugal compressors (no exceptions). Each comp

3. The chiller shall be equipped with a refrigerant cooled and integrated Variable Frequency Drive (VFD) to automatically regulate compressor speed i

©2014 Daikin Applied. Illustrations and data cover the Daikin Applied product at the time of publication and we reserve the right to make changes in d

system consisting of a 15-inch VGA touch-screen operator interface and a unit controller. 2. The touch-screen shall display the unit operating parame

5. OSHPD Certication: The chiller shall be OSHPD Pre-Approved per OSP–0116-10 and be so labeled. The chiller shall meet a minimum seismic design spe

CAT 602-4 ©2014 Daikin Applied (4/14) | (800) 432–1342 | www.DaikinApplied.comDaikin Applied Training and DevelopmentNow that you have made a

Technology That Just Makes Sense The industry’s next generation of centrifugal chillers is here today with Daikin Magnitude® chillers. The new techno

The Compressor TechnologyModel WMC’s exceptional efciency and reliability is due to its cutting-edge magnetic bearing compressor technology. A digita

Additional Compressor Design BenetsModel WMC’s magnetic bearing compressor design offers many benets not only because of its oil free design but als

Figure 2: Operator Interface Trend History Screen The controller memory (no batteries required) also retains the fault history for troubleshooting a

Compliance with ASHRAE Std. 90.1ASHRAE Standard 90.1 was developed to assist owners and designers make informed choices on a building’s design, system

Unit DimensionsFigure 4: WMC145S (2-pass, right-hand conguration, with grooved connections) Figure 5: WMC145-400D (2-pass, right-hand conguration

Drawing Notes1. Final connections must allow for 0.5 inch +/- (12.7mm) manufacturing tolerances.2. 1.00-inch FPT (25.4 mm) evaporator and condenser